Q&A for How to Grow Wasabi

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How long does it take for seeds to germinate?

Andrew Carberry, MPH
Food Systems Expert
Andrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.

Andrew Carberry, MPH

Food Systems Expert

Expert Answer

Wasabi seeds can take up to 20 days to germinate.

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Can wasabi be grown hydroponically?

Andrew Carberry, MPH
Food Systems Expert
Andrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.

Andrew Carberry, MPH

Food Systems Expert

Expert Answer

Yes, wasabi can be grown hyproponically. Many commercial growers produce wasabi this way.

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Can wasabi be grown in a pot?

Community Answer

Yes. I'm growing wasabi in a 10 inch pot on my balcony without trouble. It's important to keep it fairly shaded and protected from frost and pests. And remember to add fertilizer every now and then.

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Question

How long will it take wasabi to grow hydroponically?

Community Answer

It could take up to 18 months before the plant is mature and ready to be harvested.

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My wasabi leaves have dark spots on them. What can I do?

Community Answer

Depending on where you live, the wasabi plant may be suffering from frost. The best thing to do is to either use mulch around the soil to increase the soil temperature, or move the plant to a warmer location, such as a shade shelter or green house.

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Will wasabi survive over the winter?

Community Answer

No, it cannot handle freezing temperatures. Best to place it inside over the winter.

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Can wasabi grow in the Philippines?

Community Answer

Yes, but keep it inside. In the Philippines, it might get too hot or too cold. So, keeping it inside is a good idea.

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Question

When should wasabi be harvested?

Community Answer

You can harvest wasabi year round. The leaves, stalks (petioles) and rhizome all have culinary uses. The leaves and stalks can be eaten raw (e.g. salads or sandwiches) or cooked (sautéed, soups, added to mashed potatoes, etc.). If you cut the leaves and stalks, just be careful not to cut the central shoots on the top of the wasabi rhizome.

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